Thanks for the speedy reply!!
Yes the lid has a pimple on the the top ( just behind the lid fixing screw.)
So a replacment head will solve my problems will it??
I assume you can replace this without getting wet
If i find this is sticking how would i remedy this??
Thanks
Matt
Hi,
I'm having a problem with my central heating. The radiators are intermitantly getting very hot and are not being regulated by the room thermostat (e.g. the central heating on the timer control unit is off).
I believe It is a fully pumped system:
Netaheat Profile 40e gas boiler
with a...